Breaking the weed cycle

  • February 1st, 2011

Wapato, Washington, grape grower Mike Sauer has experience with replanting both wine and juice grapes. Wine grapes, when following wine grapes in a vineyard with wide spacing between vine rows, are relatively easy, but Concords following Concords are a ­different problem, he says.

Sauer’s early wine grape vineyards were planted [...]

  • Electric vehicle has power

Electric vehicle has power

  • December 1st, 2010

Karen Lewis and Gwen Hoheisel (standing) demonstrate how an electric utility vehicle can be used for herbicide spraying with the WeedSeeker technology.

Karen Lewis and Gwen Hoheisel, Washington State University Extension educators, say an electric all-terrain vehicle that they’re evaluating has met or exceeded all their expectations in research plots.

The [...]

  • Use glyphosate  with caution

Use glyphosate with caution

  • September 1st, 2010

This stunted apple tree, which has a large basal canker, is in an orchard where the grower used glyphosate alone three to four times a year to control weeds. Cuts on the margin of the canker show healthy green tissue.

Growers often express concern that a herbicide program using glyphosate [...]

  • Protect trees from weeds and pests

Protect trees from weeds and pests

  • May 15th, 2010

Control weeds while they’re small and easy to kill, so they don’t compete with the young trees.

In a new orchard, weeds have every condition they need to thrive and compete with the trees—full sun, regular moisture, and nutrients. Keep a sharp eye on the weeds right from the start [...]

  • Options for weed control

Options for weed control

  • April 15th, 2010

Good weed control is most important early in the season, but fall may be a better time to get the job done.

Good weed control is essential in modern orchards, where trees are planted at high densities on weak, shallow-rooted rootstocks and can’t handle much competition for water and nutrients.

Given [...]

  • Cultivating beneficials

Cultivating beneficials

  • December 1st, 2009

Mike Omeg checks for beneficial insects in goldenrod plants in an insectary alongside a Regina cherry block. He’s watched by (from left) Drew Merritt and Kristin Currin of Humble Roots Farm & Nursery at Mosier, Oregon, and Gwendolyn Ellen of Oregon State

Oregon cherry grower Mike Omeg is worried about [...]